公开(公告)号：US11214363B2

公开(公告)日：2022-01-04

申请号：US17068767

申请日：2020-10-12

Applicant: Bell Textron Inc.

Inventor： Timothy Kent Ledbetter ,  Thomas Parham ,  Dalton T. Hampton ,  Frank Stamps ,  Zachary Edwin Dailey ,  Robert L. Milliken

IPC: B64C27/35 ,  B64C27/46

Abstract: An example of a hub for a tail rotor includes a body configured to couple to a mast of a rotor system, a trunnion disposed within the body, first and second shafts disposed on opposite sides of the trunnion, first and second end plates secured to the body, and first and second end bearings, the first end bearing disposed between the first shaft and the first end plate and the second end bearing disposed between the second shaft and the second end plate.

公开(公告)号：US20200317329A1

公开(公告)日：2020-10-08

申请号：US16372732

申请日：2019-04-02

Applicant: Bell Textron Inc.

Inventor： Mark Adam Wiinikka ,  John McCullough ,  Russell Steven Cole ,  William Russell Cleary, JR. ,  Zachary Edwin Dailey

IPC: B64C27/48 ,  B29C70/54

Abstract: An embodiment rotorcraft main rotor system, including a yoke, a rotor blade, and a grip assembly attaching the rotor blade to the yoke. The grip assembly includes a grip body formed from a contiguous laminated composite and has a substantially constant thickness, where the grip body has an upper extension, a lower extension and a connecting portion connected between an inboard end of the upper extension and an inboard end of the lower extension. An inside surface of the upper extension faces, and is substantially parallel to, an inside surface of the lower extension, and the upper extension has first features and the lower extension has second features that are aligned with the first features, where the first features and second features each include at least one of an edge contour, attachment holes, or first protective elements.